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銅で触媒化されたエナチオセレクティブラジカル1,4-エニネスの機能不全

Yuehua Zeng¹, Mong-Feng Chiou¹, Xiaotao Zhu^1,2

¹Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People's Republic of China.

Journal of the American Chemical Society

|October 9, 2020

まとめ

この研究は,キラルアレンを合成するための新しいラジカル経路を導入し,以前の方法の限界を克服しました. この画期的な発見により合成ツールボックスが拡張されかつては利用できなかった価値ある非対称アレンが作られました

科学分野:

有機化学
アシンメトリック・シンセシス
ラジカル・ケミストリー

背景:

チラールアルレンは天然製品や医薬品における重要な構造単位です.
1,3-エニンの非対称的1,4-機能化は,キラルアレンを作るための重要な戦略である.
既存の方法は主にアレンイルアニオン経路を利用し,機能化を電化に制限する.

研究の目的:

1,3-エニンのラジカルベースの非対称的1,4-機能化を開発する.
既存のアレニルアニオン法を補完し,キラルアレニル合成の範囲を拡大する.
アレンの骨格に多様なグループを誘導選択的に導入できるようにする.

主な方法:

1,3-エニンの銅で触媒化されたラジカル1,4-機能不全.
アレニルフリーラジカルを含むグループ転送経路を利用した.
ラジカルアレン形成におけるステレオ制御の方法を開発した.

主要な成果:

最初のエナチオセレクティブアレン形成が報告されました
1,3-エニンの銅触媒による非対称的1,4-機能化を成功裏に実証した.
以前は合成が困難だった価値あるキラルアレンへのアクセスを提供した

結論:

この研究は,非対称的な過激化学の新たなパラダイムを確立します.
開発された方法は,キラルアレンのステレオ制御合成のための強力な戦略を提供します.
エナチオセレクティブのグループ転送反応のさらなる進歩の道を開く.

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